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Add 70/21 and 56/30

1st number: 3 7/21, 2nd number: 1 26/30

70/21 + 56/30 is 26/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 30 is 210
  2. For the 1st fraction, since 21 × 10 = 210,
    70/21 = 70 × 10/21 × 10 = 700/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    56/30 = 56 × 7/30 × 7 = 392/210
  4. Add the two fractions:
    700/210 + 392/210 = 700 + 392/210 = 1092/210
  5. 1092/210 simplified gives 26/5
  6. So, 70/21 + 56/30 = 26/5
    In mixed form: 51/5

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